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Search: id:A122484
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| A122484 |
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Numbers n not ending in zero such that the sum of digits of n is >= the sum of digits of n^4 (in base 10). |
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+0
1
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OFFSET
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1,2
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COMMENT
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I've also found three larger examples: 57999659949, 84936699999 and 498998999999, but not all values in between have been checked.
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EXAMPLE
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67 is in the list because 67 has a digital sum of 13, and 67^4 = 20151121 which also has a digital sum of 13.
594959999 has a digital sum of 68 and 594959999^4 has a digital sum of 67, i.e. less than 68.
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CROSSREFS
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Cf. A064210.
Sequence in context: A092359 A046137 A121825 this_sequence A005516 A002533 A111011
Adjacent sequences: A122481 A122482 A122483 this_sequence A122485 A122486 A122487
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KEYWORD
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base,nonn
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AUTHOR
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Martin Raab (raab-martin(AT)gmx.de), Sep 15 2006
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